marlowx,

Guitar tone is OK, but not extraordinary (for an X3).  In your demos, the vocals & guitar(s) are fighting with one another in the mix: the frequency range is too similar.  I recommend this: double-track the guitar recording (play the same exact thing or very similar, do NOT do a copy & paste job.  Record guitar tracks separately).  Pan one guitar track hard to the left.  Pan the other guitar track hard to the right.  Also, when you do this, less distortion/gain is necessary.  Playing has to be fairly tight, or it won't sound good.  If the vocals are sitting in the middle (don't have stereo effects on vocals spread far left & right), everything should stand out better.  If you've never tried it before, you'd be surprised what a difference it makes.